gargoyleking
Adventurer
Don't you need proficiency in healers kits?
Strangely, you don't: There's no prerequisite, and there's no rolls involved. I think the Feat is using a slightly different mechanic to model ability as a healer than the usual proficiency system. They probably should have had the feat give you proficiency if you don't have it, but the skill, proficiency, and tool systems are inconsistent anyway. IMO, it's probably the weakest thing design-wise in 5e, but it works. Sometimes has a few wonky bits, is all.
Story-wise, you'll have learned some tricks at the monastery, some stuff from Qawasha, some stuff from Tarri, and have a natural aptitude as well. (Monastic tricks could be massage or joint-manipulation, or even teaching the others to breathe through pain, or whatever).
I know, I was considering medic as an alternative. I can see the two working very well in tandem.The Feat is called "Healer" in the PHB. I kept looking for it under Medic, too.